Sumiswalder in canton Basel-Stadt: twelve years of premiums
In canton Basel-Stadt, the lowest Sumiswalder premium went from CHF 453.80 a month in 2015 to CHF 696.90 in 2026 — a rise of +53.6 %. The table below places it next to the canton's cheapest insurer, year by year.
| Year | This insurer | The cheapest | Gap |
|---|---|---|---|
| 2015 | CHF 453.80 | CHF 370.80 | CHF 83.00 |
| 2016 | CHF 468.50 | CHF 402.00 | CHF 66.50 |
| 2017 | CHF 507.80 | CHF 433.30 | CHF 74.50 |
| 2018 | CHF 583.90 | CHF 454.10 | CHF 129.80 |
| 2019 | CHF 618.00 | CHF 470.20 | CHF 147.80 |
| 2020 | CHF 606.60 | CHF 486.60 | CHF 120.00 |
| 2021 | CHF 606.60 | CHF 486.30 | CHF 120.30 |
| 2022 | CHF 606.60 | CHF 481.40 | CHF 125.20 |
| 2023 | CHF 606.60 | CHF 501.60 | CHF 105.00 |
| 2024 | CHF 620.10 | CHF 544.70 | CHF 75.40 |
| 2025 | CHF 676.60 | CHF 557.50 | CHF 119.10 |
| 2026 | CHF 696.90 | CHF 575.90 | CHF 121.00 |
Faster or slower than the rest?
Sumiswalder rose +53.6 % over the period, against +55.3 % for the cheapest insurer in the same place. The gap narrowed — which does not mean this insurer is the cheapest today, only that it climbed more slowly.
The year that hurt — The steepest year-on-year jump was 2018: +15.0 % in one go. The premium did not move in 2021, 2022, 2023.
Figures for an adult, CHF 300 deductible, accident cover included — the only profile defined identically across all twelve years. Each year this is the lowest premium the insurer offered, all models combined.
Sumiswalder, canton by canton
Other insurers
Source: Federal Office of Public Health (FOPH), premium files from 2015 to today.